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Patents Granted on 1939-04-11
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
2,153,847Apr. 11, 1939L. ScruggsChuck or Tool Holdermetalworking machine tool holders
2,154,249Apr. 11, 1939F.P. PorterInternal Combustion Engineinternal combustion engines
2,154,367Apr. 11, 1939J.M. Up De GraffCombination Hack and Compass Saw Frame
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